6:33 Seek ye first the kingdom of God. The promise is made that if we seek it first, and its righteousness, all earthly wants will be supplied. The condition demands, (1) That we seek the kingdom first in point of time. Some propose to secure a competence, and after they have gained it, they will serve God. (2) We must make it first in importance. Everything else must give way before its demands. (3) It must be first in our affections, have our whole hearts. We must love the Lord our God with the whole heart (Mt 22:37).
His righteousness. The righteousness that God bestows upon those who are in the Kingdom, Christ's righteousness, the forgiveness of sins in his name.
6:33 Seek the kingdom of God and his righteousness - Singly aim at this, that God, reigning in your heart, may fill it with the righteousness above described. And indeed whosoever seeks this first, will soon come to seek this only.
6:25-34 There is scarcely any sin against which our Lord Jesus more warns his disciples, than disquieting, distracting, distrustful cares about the things of this life. This often insnares the poor as much as the love of wealth does the rich. But there is a carefulness about temporal things which is a duty, though we must not carry these lawful cares too far. Take no thought for your life. Not about the length of it; but refer it to God to lengthen or shorten it as he pleases; our times are in his hand, and they are in a good hand. Not about the comforts of this life; but leave it to God to make it bitter or sweet as he pleases. Food and raiment God has promised, therefore we may expect them. Take no thought for the morrow, for the time to come. Be not anxious for the future, how you shall live next year, or when you are old, or what you shall leave behind you. As we must not boast of tomorrow, so we must not care for to-morrow, or the events of it. God has given us life, and has given us the body. And what can he not do for us, who did that? If we take care about our souls and for eternity, which are more than the body and its life, we may leave it to God to provide for us food and raiment, which are less. Improve this as an encouragement to trust in God. We must reconcile ourselves to our worldly estate, as we do to our stature. We cannot alter the disposals of Providence, therefore we must submit and resign ourselves to them. Thoughtfulness for our souls is the best cure of thoughtfulness for the world. Seek first the kingdom of God, and make religion your business: say not that this is the way to starve; no, it is the way to be well provided for, even in this world. The conclusion of the whole matter is, that it is the will and command of the Lord Jesus, that by daily prayers we may get strength to bear us up under our daily troubles, and to arm us against the temptations that attend them, and then let none of these things move us. Happy are those who take the Lord for their God, and make full proof of it by trusting themselves wholly to his wise disposal. Let thy Spirit convince us of sin in the want of this disposition, and take away the worldliness of our hearts.